Chp12 - Chapter 12 Acid-Base Chemistry Definition of...

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Unformatted text preview: Chapter 12 Acid-Base Chemistry Definition of Acid/Base Acid/Base Strength Acid Dissociation (K a ) pH and pK a Arrhenius acids: substances that produce H + ions in solution HCl H + + Cl- HClO 2 H + + ClO 2- Arrhenius bases: substances that produce OH- ions in solution NaOH Na + + OH- NH 3 + H 2 O NH 4 + + OH- Arrhenius Definition Lewis acid: electron acceptor; empty orbital that can overlap with Lewis base Lewis bases: electron donor; contains a lone pair Lewis Definition H Ag C O O Al Cl Cl Cl C O H 3 C OCH 3 N H H H H S O O O N H H H F O H CH 3 H S Formation of a covalent bond between a Lewis acid and a Lewis base Curved arrow indicates lone pair becomes covalent bond Metals that lie low and to the right on periodic table , low Z eff Lewis Acid-Base Reaction Cl Al Cl Cl Cl Cl Al Cl Cl Cl 1- Ag Cl Ag Cl Brnsted Definition Brnsted acid : proton (H + ) donor; generates H + in water Brnsted base: proton acceptor; same as a Lewis base Strong acids dissociate completely in water:...
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Chp12 - Chapter 12 Acid-Base Chemistry Definition of...

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